# Expansion Vessel FLAMCO 8 L, 0.5–3.0 bar (model 25300)

**URL:** https://aio.lv/en/product--flamco-25300--12045197
**Data updated:** 2026-03-12 19:27 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** FLAMCO
**Manufacturer code:** 25300
**EAN:** 8712874253001
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 40.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 33.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--flamco-25300--12045197

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

FLAMCO expansion vessel, 8 L capacity, designed for closed heating and hot water systems. Rated operating pressure range 0.5–3.0 bar. Provides hydraulic compensation of thermal expansion to maintain system pressure, protect components and reduce water loss. Suitable for residential and light commercial boilers, heating circuits and domestic hot water systems.

## Long description

FLAMCO expansion vessel 8 L is designed for closed heating and domestic hot water systems to provide hydraulic compensation for thermal expansion. With an 8-litre bladder volume and an adjustable operating pressure range from 0.5 to 3.0 bar, this vessel helps stabilise system pressure, reduce water loss and protect pumps, valves and other components from pressure-related stress. The product is compatible with a wide range of residential and light commercial boilers and heating circuits and is intended for installation on systems where controlled pressure management is required.
Advantages
The expansion vessel provides reliable pressure control across the specified 0.5–3.0 bar range and reduces cycling of circulating pumps by absorbing excess volume during thermal expansion. Its compact 8 L capacity allows flexible installation in tight plant rooms or near boilers. The pre-charged bladder design separates air and water, minimising air ingress into the system and helping to maintain stable pressure for longer periods.
Suitable for
Closed-loop residential heating systems
Domestic hot water circuits
Light commercial boiler installations
Radiator and underfloor heating systems requiring pressure compensation
Key specifications
Nominal volume: 8 litres
Operating pressure range: 0.5–3.0 bar
Bladder-type vessel with pre-charge
Suitable for closed heating and hot water systems
Compact dimensions suitable for confined installation spaces
How to use
Install the FLAMCO expansion vessel in accordance with local plumbing and heating regulations and the system manufacturer’s instructions. Mount the vessel on a straight run of pipe or on the boiler return as recommended, ensuring correct orientation and secure fittings. Set the pre-charge pressure to match the system’s static pressure (typically slightly below the system fill pressure) before putting the system into operation. After installation, pressurise the heating system, check for leaks and verify that the vessel is absorbing expansion by observing stable system pressure during a heat cycle.
Usage recommendations
Regularly inspect the vessel for external damage and check the pre-charge pressure at service intervals. If system pressure drifts or the vessel loses effectiveness, verify bladder integrity and pre-charge pressure and replace the vessel if necessary. Use the vessel within the specified operating pressure range and follow manufacturer guidance for connection fittings and mounting to ensure reliable long-term performance.

## FAQ

### How much does the Expansion Vessel FLAMCO 8 L 0.5–3.0 bar cost, and is it available for purchase?

The price is 40.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 35 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 07.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All FLAMCO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized FLAMCO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12045197/67531813_large.webp